Miniature ultraviolet inspection unmanned aerial vehicle for transformer substation

Abstract

The utility model discloses a mini ultraviolet inspection unmanned plane for transformer substation belongs to unmanned plane technical field, this mini ultraviolet inspection unmanned plane for transformer substation, including unmanned plane main part, the bottom fixedly connected with support mechanism of unmanned plane main part, the support mechanism is rotatably connected with two rotating shafts, two rotating shafts's outside all are fixedly connected with sleeve, the sleeve is slidably connected with telescopic mechanism, telescopic mechanism's one end fixedly connected with two arc plates, the side surface sliding connection of unmanned plane main part has limit stop mechanism, limit stop mechanism is positioned for sleeve. The utility model discloses through support mechanism and torsional spring's mechanical energy storage realizes sleeve automatic reset, realizes the effect of quick response, realizes the effect of quick response, through telescopic mechanism's multistage sliding and spring compression realizes the gradual distance control, utilizes mechanical deformation gradient extension stroke, solves the problem that electronic ranging sensor is susceptible to interference under strong electromagnetic environment and leads to the data distortion problem.

Description

Technical Field

[0001] This utility model relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a miniature ultraviolet (UV) inspection UAV for substations. Background Technology

[0002] Miniature ultraviolet inspection drones used in substations are miniature aircraft that integrate ultraviolet imaging technology. They detect high-temperature or corona discharge defects in equipment through non-contact detection and transmit data in real time to assist in inspections. They are characterized by their small size, flexibility, and high efficiency, and can quickly identify potential faults in power equipment, thereby improving the safety and efficiency of inspections.

[0003] In the field of substation inspection in the power industry, traditional manual inspection methods suffer from low efficiency and high risk, while micro-drone inspection technology has been widely used due to its flexibility and non-contact detection advantages. However, there are still some shortcomings in the existing technology for controlling the safe distance between drones and high-voltage live equipment: on the one hand, the operation method that relies on the pilot's visual judgment is subject to subjective error risk, especially in complex electromagnetic environments or severe weather conditions, where the accuracy and reaction speed of manual operation are difficult to guarantee; on the other hand, although the solution using electronic ranging sensors such as ultrasonic and laser sensors can achieve automatic obstacle avoidance, these sensors are easily interfered with in strong electromagnetic field environments, resulting in distorted ranging data.

[0004] Therefore, there is an urgent need to provide a miniature ultraviolet inspection drone for substations to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a miniature ultraviolet inspection drone for substations.

[0006] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: providing a miniature ultraviolet inspection drone for substations, including a drone body, wherein a support mechanism is fixedly connected to the bottom of the drone body;

[0007] The support mechanism has two rotating shafts rotatably connected inside, and sleeves are fixedly connected to the outside of each of the two rotating shafts. The support mechanism is used to support the sleeves.

[0008] A telescopic mechanism is slidably connected inside the sleeve. Two arc-shaped plates are fixedly connected to one end of the telescopic mechanism. The telescopic mechanism and the arc-shaped plates cooperate to restrict the main body of the drone from approaching the electrical equipment.

[0009] A limiting mechanism is slidably connected to the side of the main body of the drone, and the limiting mechanism is used to limit the sleeve.

[0010] The present invention is further configured such that: the support mechanism includes two first brackets fixedly connected to the bottom of the drone body, the two first brackets are centrally symmetrical, the interior of each of the two first brackets is rotatably connected to a rotating shaft, the other end of each of the two rotating shafts is simultaneously rotatably connected to the bottom of the drone body, a fixing block is fixedly connected to the exterior of each of the two rotating shafts, each of the two fixing blocks is fixedly connected to one end of a sleeve, and a torsion spring is sleeved on the exterior of each of the two rotating shafts, the two ends of the torsion spring being fixedly connected to the bottom of the drone body and the fixing block, respectively.

[0011] Through the above technical solution, the support mechanism achieves stable rotation and automatic reset of the sleeve through the combination of the first bracket and the rotating shaft. When the sleeve rotates to be parallel to the bottom of the drone body, the torsion spring is twisted, and then the L-shaped rod slides down to abut against the sleeve for positioning. At this time, the first and second sliding rods are in a retracted state. When the arc plate is needed, the L-shaped rod slides up, and under the action of the torsion spring, the sleeve automatically resets to be perpendicular to the drone body. At this time, the sliding rod extends out from the sleeve and is in working state. Then, the L-shaped rod slides down to abut against the sleeve for positioning. The automatic return of the sleeve is achieved through mechanical energy storage, which is convenient, quick, simple and practical.

[0012] The present invention is further configured such that: the telescopic mechanism includes two first sliding rods that are slidably connected inside the two sleeves respectively, and correspond one-to-one; a second sliding rod is slidably connected inside each of the two first sliding rods; the sleeves, the first sliding rods, and the second sliding rods are all hollow inside; a spring is connected inside each of the two sleeves; the two ends of the springs are fixedly connected to the inside of the sleeve and the second sliding rod respectively; and one end of each of the two second sliding rods is fixedly connected to an arc-shaped plate.

[0013] Through the above technical solution, the telescopic mechanism achieves progressive distance control by using multi-stage sliding and spring compression; when the arc plate contacts the live equipment, the second slide bar first slides to compress the spring. If the pressure continues to increase, the first slide bar slides further in the sleeve. Through two-stage buffering, the working stroke is extended, so that the backward speed of the UAV is linearly related to the pressure; through mechanical deformation gradient control, the equipment loss of control caused by instantaneous high pressure is avoided.

[0014] The present invention is further configured such that: the limiting mechanism includes two T-shaped blocks respectively fixedly connected to both sides of the drone body, and corresponding one to one; each of the two T-shaped blocks is slidably connected to an L-shaped rod; one side of the L-shaped rod abuts against the outside of the sleeve; and there is damping between the L-shaped rod and the drone body.

[0015] Through the above technical solution, the limiting mechanism achieves sleeve angle fixation through damped sliding and geometric constraints. When the sleeve rotates to the bottom of the UAV body, the downward sliding L-shaped rod abuts against the sleeve, limiting further rotation of the sleeve and ensuring that the sleeve is always located at the bottom of the equipment, in a retracted state, saving space. When the arc plate needs to work, the upward sliding L-shaped rod causes the sleeve to automatically reset under the action of the torsion spring, and then the downward sliding L-shaped rod abuts against the sleeve. The position is maintained by the arc plate contacting the live equipment. Both the arc plate and the second sliding rod are made of non-conductive materials. By fixing the sleeve attitude through a purely mechanical means, delays or failures in electronic control are avoided. It can still work stably in a strong electromagnetic environment, improving the reliability of safe distance control.

[0016] The present invention is further configured such that: two centrally symmetrical limiting blocks are fixedly connected to the bottom of the drone body, and grooves are provided in both limiting blocks; one end of each of the two second sliding rods passes through the arc-shaped plate and is located in the groove.

[0017] Through the above technical solution, the cooperation between the limiting block and the groove achieves the positioning of the sleeve end; when it is desired to shrink the sleeve, the sleeve is rotated inward and the slide rod is compressed, and the end of the second slide rod slides into the groove. Geometric constraints prevent the slide rod from coming out, while the side wall of the groove restricts the lateral displacement of the slide rod; the sleeve is positioned a second time through the cooperation between the groove and the second slide rod.

[0018] The present invention is further configured such that the inner walls of both sleeves are rotatably connected by bolts via threads, and one end of each bolt contacts and abuts against the first sliding rod.

[0019] Through the above technical solution, the bolt adjustment mechanism enables adjustable sleeve stroke; rotating the bolt can adjust the initial position of the first slide bar inside the sleeve, changing the effective extension and retraction length of the sleeve; enabling the UAV to adapt to the detection requirements of equipment with different voltage levels, replacing electronic program modification with mechanical adjustment, avoiding interference from complex electromagnetic environments on the control system, and improving the equipment's adaptability to multi-scenario inspection tasks.

[0020] The beneficial effects of this utility model are as follows:

[0021] 1. This utility model achieves automatic sleeve reset through the mechanical energy storage of the support mechanism and torsion spring, thus achieving a rapid response effect; it achieves progressive distance control through multi-stage sliding of the telescopic mechanism and spring compression, and extends the working stroke by utilizing the mechanical deformation gradient, thereby solving the problem of data distortion caused by interference in strong electromagnetic environments for electronic ranging sensors.

[0022] 2. This utility model achieves sleeve angle fixation through damping sliding and geometric constraints of the limiting mechanism, and ensures posture stability through a purely mechanical means, thereby improving the reliability of safety distance control during the inspection of high-voltage live equipment. Attached Figure Description

[0023] Figure 1 This is a first-view structural diagram of the present invention;

[0024] Figure 2 This is a second-view sectional view of the present invention;

[0025] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0026] Figure 4 This is a third-view sectional view of the present invention;

[0027] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0028] Figure 6 This is a fourth-angle sectional view of the present invention;

[0029] Figure 7 This is a fifth-angle sectional view of the present invention;

[0030] Figure 8 for Figure 7 A magnified view of a section at point C.

[0031] In the diagram: 1. UAV body; 2. Support mechanism; 201. First bracket; 202. Fixing block; 203. Torsion spring; 3. Rotating shaft; 4. Sleeve; 5. Telescopic mechanism; 501. First slide bar; 502. Second slide bar; 503. Spring; 6. Arc plate; 7. Limiting mechanism; 701. T-block; 702. L-shaped rod; 703. Limiting block; 704. Groove; 705. Bolt. Detailed Implementation

[0032] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0033] Please see Figures 1-8This embodiment of a miniature ultraviolet inspection drone for substations includes a drone body 1. A support mechanism 2 is fixedly connected to the bottom of the drone body 1. Two rotating shafts 3 are rotatably connected inside the support mechanism 2. Sleeves 4 are fixedly connected to the outside of each of the two rotating shafts 3. The support mechanism 2 supports the sleeves 4. The support mechanism 2 includes two first brackets 201 fixedly connected to the bottom of the drone body 1. The two first brackets 201 are centrally symmetrical. The inside of each of the two first brackets 201 is rotatably connected to the rotating shafts 3. The other end of each of the two rotating shafts 3 is rotatably connected to the bottom of the drone body 1. Fixing blocks 202 are fixedly connected to the outside of each of the two rotating shafts 3. Each of the two fixing blocks 202 is fixedly connected to one end of the sleeve 4. Torsion springs 203 are sleeved on the outside of each of the two rotating shafts 3. The two ends of the spring 203 are fixedly connected to the bottom of the drone body 1 and the fixing block 202, respectively. The support mechanism 2 achieves stable rotation and automatic reset of the sleeve 4 through the combination of the first bracket 201 and the rotating shaft 3. When the sleeve 4 rotates to the bottom of the drone body 1 and is parallel to it, the torsion spring 203 is twisted, and then the L-shaped rod 702 slides down to abut against the sleeve 4 and position it. At this time, the first sliding rod 501 and the second sliding rod 502 are in a retracted state. When the arc plate 6 is needed, the L-shaped rod 702 slides up, and the sleeve 4 automatically resets to be perpendicular to the drone body 1 under the action of the torsion spring 203. At this time, the sliding rod extends out from the sleeve 4 and is in working state. Then the L-shaped rod 702 slides down to abut against the sleeve 4 and position it. The automatic return of the sleeve 4 is achieved through mechanical energy storage, which is convenient, quick, simple and practical.

[0034] like Figures 7-8 As shown, a telescopic mechanism 5 is slidably connected inside the sleeve 4. Two arc-shaped plates 6 are fixedly connected to one end of the telescopic mechanism 5. The telescopic mechanism 5 and the arc-shaped plates 6 cooperate to restrict the drone body 1 from approaching the electrical equipment. The telescopic mechanism 5 includes two first sliding rods 501 that are slidably connected inside the two sleeves 4 respectively, and they correspond one-to-one. A second sliding rod 502 is slidably connected inside each of the two first sliding rods 501. The sleeves 4, the first sliding rods 501, and the second sliding rods 502 are all hollow inside. A spring 503 is connected inside each of the two sleeves 4. The two ends of the spring 503 are respectively connected to the sleeves 4. Inside the sleeve 4, the second slide rod 502 is fixedly connected. One end of each of the two second slide rods 502 is fixedly connected to the arc plate 6. The telescopic mechanism 5 uses multi-stage sliding and spring 503 compression to achieve progressive distance control. When the arc plate 6 contacts the live equipment, the second slide rod 502 first slides to compress the spring 503. If the pressure continues to increase, the first slide rod 501 slides further inside the sleeve 4. The working stroke is extended through two-stage buffering, so that the backward speed of the UAV is linearly related to the pressure. Through mechanical deformation gradient control, the equipment loss of control caused by instantaneous high pressure is avoided.

[0035] like Figures 1-5As shown, a limiting mechanism 7 is slidably connected to the side of the drone body 1. The limiting mechanism 7 is used to limit the sleeve 4. The limiting mechanism 7 includes two T-shaped blocks 701 that are fixedly connected to both sides of the drone body 1, and they correspond one-to-one. An L-shaped rod 702 is slidably connected to the outside of each of the two T-shaped blocks 701. One side of the L-shaped rod 702 abuts against the outside of the sleeve 4. There is damping between the L-shaped rod 702 and the drone body 1. The limiting mechanism 7 achieves the angle fixation of the sleeve 4 through damped sliding and geometric constraints. When the sleeve 4 rotates to the bottom of the drone body 1, the downward sliding L-shaped rod 702 abuts against the sleeve 4. The sleeve 4 is restricted from further rotation, ensuring that it remains at the bottom of the equipment and is in a retracted state, saving space. When the arc plate 6 needs to work, the L-shaped rod 702 slides upward, and the sleeve 4 automatically resets under the action of the torsion spring 203. Then, the L-shaped rod 702 slides downward to hold the sleeve 4 in place. The arc plate 6 contacts the live equipment to maintain its position. Both the arc plate 6 and the second slide rod 502 are made of non-conductive materials. The sleeve 4 is fixed in position by a purely mechanical means, avoiding delays or failures in electronic control. It can still work stably in a strong electromagnetic environment, improving the reliability of safe distance control.

[0036] like Figures 7-8 As shown, two centrally symmetrical limiting blocks 703 are fixedly connected to the bottom of the UAV body 1. Each limiting block 703 has a groove 704. One end of each of the two second sliding rods 502 passes through the arc plate 6 and is located in the groove 704. The cooperation between the limiting blocks 703 and the grooves 704 achieves the positioning of the end of the sleeve 4. When it is desired to retract the sleeve 4, the sleeve 4 is rotated inward and the sliding rod is compressed. The end of the second sliding rod 502 slides into the groove 704. Geometric constraints prevent the sliding rod from coming out, and the sidewall of the groove 704 restricts the lateral displacement of the sliding rod. The sleeve 4 is repositioned by the cooperation between the groove 704 and the second sliding rod 502.

[0037] like Figures 7-8 As shown, the inner walls of both sleeves 4 are connected to bolts 705 by threaded rotation. One end of the bolt 705 contacts and abuts against the first slide rod 501. The adjustment mechanism of the bolt 705 enables the sleeve 4 to have an adjustable stroke. Rotating the bolt 705 can adjust the initial position of the first slide rod 501 inside the sleeve 4, changing the effective extension length of the sleeve 4. This allows the UAV to adapt to the detection requirements of equipment with different voltage levels. By replacing electronic program modifications with mechanical adjustment, the interference of complex electromagnetic environments on the control system is avoided, and the adaptability of the equipment to multi-scenario inspection tasks is improved.

[0038] In use, when the drone body 1 approaches the high-voltage equipment, the arc-shaped plate 6 first contacts the equipment surface, and the second slide rod 502 is compressed by the sliding spring 503. If the pressure continues to increase, the first slide rod 501 slides further within the sleeve 4. The deformation of the two-stage spring 503 forms a gradual buffer, making the drone's backward speed linearly related to the contact pressure. When the sleeve 4 needs to be retracted, the L-shaped rod 702 is slid upward to release the limit, and the sleeve 4 is rotated to compress the first slide rod 501 and the second slide rod 502. At this time, the spring 503 is compressed and twisted. The torsion spring 203 is used until the second slide bar 502 enters the groove 704, and the L-shaped rod 702 slides down to abut against the sleeve 4 to complete the mechanical locking; the posture of the sleeve 4 is fixed by pure geometric constraints to avoid interference from electronic sensors in strong electromagnetic fields; rotating the bolt 705 inside the sleeve 4 can adjust the initial position of the first slide bar 501 and change the extension stroke to adapt to equipment of different voltage levels; by using mechanical energy storage, multi-stage deformation and pure mechanical limit, the problems of manual operation error and electronic ranging failure are solved, and the automatic and stable control of safe distance in strong electromagnetic environment is realized.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A miniature ultraviolet inspection drone for substations, comprising a drone body (1), characterized in that: The bottom of the main body (1) of the drone is fixedly connected to a support mechanism (2); The support mechanism (2) has two rotating shafts (3) rotatably connected inside, and sleeves (4) are fixedly connected to the outside of the two rotating shafts (3). The support mechanism (2) is used to support the sleeves (4). The sleeve (4) is slidably connected to a telescopic mechanism (5), and one end of the telescopic mechanism (5) is fixedly connected to two arc-shaped plates (6). The telescopic mechanism (5) and the arc-shaped plates (6) cooperate to restrict the main body of the drone (1) from approaching the electrical equipment. The side of the main body (1) of the drone is slidably connected to a limiting mechanism (7), which is used to limit the sleeve (4).

2. The miniature ultraviolet inspection drone for substations according to claim 1, characterized in that: The support mechanism (2) includes two first brackets (201) fixedly connected to the bottom of the drone body (1). The two first brackets (201) are centrally symmetrical. The interior of each of the two first brackets (201) is rotatably connected to a rotating shaft (3). The other end of each of the two rotating shafts (3) is rotatably connected to the bottom of the drone body (1). A fixing block (202) is fixedly connected to the exterior of each of the two rotating shafts (3). Each of the two fixing blocks (202) is fixedly connected to one end of a sleeve (4). A torsion spring (203) is sleeved on the exterior of each of the two rotating shafts (3). The two ends of the torsion spring (203) are fixedly connected to the bottom of the drone body (1) and the fixing block (202), respectively.

3. A miniature ultraviolet inspection drone for substations according to claim 1, characterized in that: The telescopic mechanism (5) includes two first slide rods (501) that are slidably connected inside the two sleeves (4) respectively, and they correspond one to one. A second slide rod (502) is slidably connected inside each of the two first slide rods (501). The sleeves (4), the first slide rods (501), and the second slide rods (502) are all hollow inside. A spring (503) is connected inside each of the two sleeves (4). The two ends of the spring (503) are fixedly connected to the inside of the sleeve (4) and the second slide rod (502) respectively. One end of each of the two second slide rods (502) is fixedly connected to the arc plate (6).

4. A miniature ultraviolet inspection drone for substations according to claim 1, characterized in that: The limiting mechanism (7) includes two T-shaped blocks (701) fixedly connected to both sides of the UAV body (1) respectively, and they correspond one to one. Both T-shaped blocks (701) are slidably connected to the outside of L-shaped rods (702). One side of the L-shaped rods (702) abuts against the outside of the sleeve (4). There is damping between the L-shaped rods (702) and the UAV body (1).

5. A miniature ultraviolet inspection drone for substations according to claim 3, characterized in that: The bottom of the main body (1) of the drone is fixedly connected to two centrally symmetrical limiting blocks (703). Each of the two limiting blocks (703) has a groove (704) inside. One end of each of the two second slide rods (502) passes through the arc plate (6) and is located in the groove (704).

6. A miniature ultraviolet inspection drone for substations according to claim 3, characterized in that: The inner walls of both sleeves (4) are connected by bolts (705) via threads, and one end of the bolts (705) contacts and abuts against the first slide rod (501).

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